Best available cop



BEST AVAILABLE COP- (No Model.) 2 ShetsSheet 1.

r A. 'JUNOD.

DUPLEX MUSIC BOX.

No. 356.251 Patented Jan. 18, 1887.

WITNESSES INVENTOR BEST AVAILABLE COP. (No Model.) 2 Sheets-Sheet 2.

v A. J UNOD.

DUPLEX MUSIC ox.

I gtented'Jan. 18, 188.7,

. WITNESSES:

I BEST AVAILABLE Cop UNITED STATES PATE T OFFICE.

ALFRED JUNOD, OF STE. OROIX, VAI .TD, SWITZERLAND, ASSIGNOR TO J.

PAILLARD QTOQ, OF NEW'YORK, N. Y. 7

" DUPLEX-MUSlC-BOX;

SPECIPICATION forming part of Letters Patent No .356,25 l, dated-Fanuary18,1887.

Application filed January 8, 1886.

To all whom it 7700/1] concern:

Be it knownthat I, ALFRED JUNOD, of Ste. Croix, Canton of Vaud; in theRepublic of Switzerland, have invented a new and Improved DuplexMusic-Box, of which the fol lowing is a full, clear, and exactdescription. The object of my invention is to provide a new and improvedmusical box which is' so constructed that the same melody can. be playedby two independent cylinders on two independent combs, or a melody canbe played by one cylinder on one' comb and the accom paniment by theother and independent cyl inder on the other comb, or that eachcylindercan play a melody alone, the other cylinder and'comb being out ofoperation-that is, re-' moved from the box. The invention consists in amusic-box 'pro-- vided with two independent cylinders and twoindependent combs or groups of combs, 0ne comb or group of combs beingprovided for each cylinder, all as will be fully described and set forthhereinafter, andthen pointed out in the claims. v

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar letters of reference. indicate corresponding parts inall the figures.

Figure l is a plan view of my improved music-box, the cover beingremoved. Fig. 2 is a cross-sectional view of the same on the line mm,Fig. 1. Fig. 3 is a crosssectional view of the same on the line y y,Fig. 1. Fig. 4 is alongitudinal sectional view of a cylinder mounted onits shaft. Fig. 5 is a detail view of part of the shifting mechanism. e

The musical box is provided with the usual. base-plate, A, on which theworks are secured, and saidv plate is provided with the two longitudinalslots 13 B, into which the lower parts of the two pin-cylinders O O arepassed,

and at the edges of the said slots the combs D D, or groups of combs,are secured on the base-plate A, one comb or group being provided foreach slot.

Each pin-cylinder G or O' is mounted to slide on and turn with a shaft,E, provided at one end with a handle-knob, F, and at'the other end witha collar or shoulder, G, between which and the endof the cylinder aspiral Serial No. 187,950. (No model.)

cylinder in the direction toward the knob F.

On the endof each shaft E, and beyond the collar G,.a disk, J, ismounted, and from the edge of the said disk the handle-pieceor wing Jprojects, and from theother side of each disk J a pin,- K, projects. J

The cylinder-bearings L,.of, which there is one ateach end ofeach slot'BB, are pro-' vided with the latches M, .which are pivoted on thebearings and serve to lock the cylinder-shafts E in the bearings, thesaid latches being swung over the endpartsmf .the said shafts in thebearings. The cylinders can thus be removed from their bearings andreplaced by others when it is desirable to play other melodies. y

The interchangeable cylinders are well known and are not to beelaimed'in this application, and are only described .to fully illusbox.

with the cog-wheel N, which engages with and revolves the pinion O onthe shaft 1?, carrying the cog -wheel R, which engages vith and drivesthe cog-wheel R, mounted .on the shaft P, which shafts P and P arejournaled in bearings on the base-plate A, parallel with the same.

The driving-spring is contained in the drum -M, mounted in suitablebearings and provided The shaft P .is also provided with the cog- Iwheel Q, which drives the flier S.

On the outer surfaces of the wheels R and R the flat disks T are formed,which are provided in their rims with the notches U for ,re-

.ceiving thepins K, projecting from the sides of the disks J, wherebythe cylinders are revolved. The driving-springis wound by means of theleverV in the usual manner or by means of a key.

On one end of the base-plateAthe two'parallel levers a are pivoted, toswing toward and from each other, and at their inner ends are pressedfrom each other by the spring 12, interposed between thern, and betweenthe outer ends of the said levers the wedge-shaped piece 9 is provided,which is formed on the lower end of. a vertically-sliding rod, h,provided at its upper end with the handle-k nob m. From. the outer edgesof the said levers a the arms I00 7o trate the character of my mprovedmusic f R andR engage.

der. plays a melody-and the other-cylinder plays the accompaniment. Incase on'ly one cylinder is to play at the time the othercylinder isremoved. It is not necessary that the pins of both cylinders act on theteeth of combs, as the pinso't' one cylinder can act on' the ends oflevers which operate orplay bells, drums, tambourines, :or reedinstruments, such as are usually employed inlarge music-boxes.

If desired, the cylinders can beso constructed that they cannot beremoved from. the box.

When it is desired to adjust the cylinders in such a manner that theyare shifted length- -Wise after each revolution, the sliding bark ispushed down, so as to 'permit the spring d to press the endsof theleversla from'each other, so that the arms p can act on'thecams ontheeylinders in the usual manner hen the cylinders are to be soadjustedthat they are not shifted lengthwise after teach revolution, thebark is raised, and then the wedge shaped piece 9 presses the outer,ends of the levers a from each other, thus preventingthe inner ends frombeing pressed apart by the spring (1. In some cases it is desirable thatthe two cylinders shall play one continuous tune, which requiresa seriesof revolutions of each cylinder-that is, the cylinders must be shiftedlengthwise while playing said tune.

1 If both cylinders were shifted at the same time, a break would occurin the time, and to avoid this the shifting devices of the cylindersareso arranged that one cylinder is shifted at the time that the other isstill playing. For instance, one cylinder plays a melody and isaccompanied by the other; but before the first cylinder has completedits revolution the second one is shifted and continues playing, andashort time after the second has been shiftedthe first completesitsrevolution and continues playing, and so on, the teeth or pins on thecombs being so set that the melodyis not interrupted during the timethat one cylinder plays alone, and also so arranged that at the timewhen the two cylinders play together again the teeth of each cylinderwill play its proper part of the melody. To play a melody requiring avconsiderable time,a pin-' cylinder having an extraordinarily largediameter is required in ordinary music-boxes, and to avoid thesecumbersome, bulky, and expensive cylinders I have provided the doublecylinders with shifting devices for the purpose of shifting them atdifferent times.-

The cylinders can have any suitable diameter,

, BEST LABLE one and can be made any suitable length, as circumstancesmay require, and the combs may be composed of a series of sections.

The mechanism is contained in a box in the usual manner.

Having thus fully described myinvention, I claim as new and desire tosecure by Letters Patent- 1. A music-box provided with two independentpin-cy1inders side by side and two independent combs or groups of combs,substantially as herein shown and described.

2. The combination, with two pin-cylinders, of an independent shaft foreach cylinder, one drivi'ng'spring for revolving both shafts, and of anindependent comb for each cylinder, substantially as herein shown anddescribed.

3 The combination, with two pin-cylinders, of a comb for. each,cylinder, two separate shafts'for driving the cylinder-shafts, a cog-,wheel on each driving-shaft,the cog-wheels engaging with each other,and of a spring for revolving the driving-shafts, substantially ashereinlshown and, described."- 7

j. 4.' In a music-box, the combination, with two cylinders, 'of' a shaftin each cylinder, a

disk provided with a laterally-'prbjecting pin on one end ofeach of saidshafts, and of wheels having notches for receiving the said pins,substantially as herein shown and described.

5. In a music-box, the combination, with two cylinders, of shafts E inthe cylinders, the disks Jon the ends of said shafts, 'the pins K on thesaid disks J, the cog-wheels R R on the shafts P P, the disks T on thecog-wheels,

and provided with the notches U, and of a spring for revolving the saidcog-wheels, substantially as herein shown and described.

6. The combination, with the base-plate A, of the spring-drum M, thecog-wheel Non the same, the shafts P P,'the pinion O on the ;shaft P,and-engaging-with the cog-wheel N,

the cog-wheels R R on the shafts P P, and of pin-cylinders revolved bythe shafts PIP, sub

stantially as herein shown and described.

7. In a music-b0x, the combination, with the base-plate, of twoindependent pin-cylinders' on' the same, the two levers a, pivoted be;

tween the cylinders, a spring acting on the I said levers at their innerends, and of a sliding piece for pressing the outer ends of the saidlevers from each other, substantially as herein shown and described, V

. 8. In a box, the combination, with two cylinders and combs for saidcylinders, of a spring for driving the cylinders and of a lever foradjusting bot-h cylinders by one movement, substantially as herein shownand described.

9. A base-plate for a music-box provided with two parallel slots for thepin-cylinders,

substantially as described.

' ALFRED JUNOD.

. lliitnesses: G. BERNAND, AUGTE. MERMOD.

